Usually when engineers think of rolled screws, they think of something that isn't very precise—with lead errors in the neighborhood of 0.01 inch per linear ft. Not any longer. Engineers at Nook Industries have reportedly come up with a way to thread roll screws with a lead error of just 0.0001 inch per linear ft—accuracy that's on the order of more expensive ground screws. The only limitation of the rolling process, engineers say, is that the outer diameter of the thread dictates the maximum diameter on the screw. Nook engineers say the advancement was "the result of better control of the rolling process." The benefits, says Chief Engineer Rick Christyson, are the cost savings (he estimates about one third the cost of a ground screw) and shorter, more reliable delivery schedules. Typical lead times for ground screws are variable, ranging from weeks to even months, says Christyson. Rather than going to head-to-head with ground screws, though, Nook says that it will target the market served by servo-hydraulics, which involves high loads, high speeds, and precision motion. Though the company won't release the new rolled screws until this summer, it's currently Beta-testing them with several customers in the OEM machine market. So far, so good, says Nook.
We looked at a number of sources to determine this year's greenest cars, from KBB to automotive trade magazines to environmental organizations. These 14 cars emerged as being great at either stretching fuel or reducing carbon footprint.
Healthcare might seem to be an unlikely target application for the Internet of Things technology, but recent developments show small ways that big-data is going to make an impact on patient care moving into the future.
A quick look into the merger of two powerhouse 3D printing OEMs and the new leader in rapid prototyping solutions, Stratasys. The industrial revolution is now led by 3D printing and engineers are given the opportunity to fully maximize their design capabilities, reduce their time-to-market and functionally test prototypes cheaper, faster and easier. Bruce Bradshaw, Director of Marketing in North America, will explore the large product offering and variety of materials that will help CAD designers articulate their product design with actual, physical prototypes. This broadcast will dive deep into technical information including application specific stories from real world customers and their experiences with 3D printing. 3D Printing is